Carrier route record
DLSLC→BUR
Delta Air Lines · Salt Lake City to Burbank
- Flights
- 394
- Period
- July 2025 to June 2026
- Share of route
- 27%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on SLC to BUR lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 394 flights, with a median arrival 6 minutes early.
Set against the rest of the country, Delta's SLC to BUR record is 4 points better than the US average of 77.6%. That gap is worth roughly 40 fewer late arrivals for every thousand flights.
Key figures
On time
81.6%
Arrivals under 15 minutes late, of 392 completed flights
Avg delay
98 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
Whole route
86.0%
Every carrier on SLC to BUR, 1,484 flights
These figures cover 394 flights between July 2025 and June 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
Delta against every carrier on SLC to BUR
Delta flew 394 of the 1,484 flights on SLC to BUR, about 27% of it. Its 81.6% on time is 4 points worse than the route as a whole, which runs 86.0%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from SkyWest at 89.5% to Southwest at 73.0%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines | 962 | 89.5% | 51 min | 0.52% | A+ |
| Delta Air Lines (this page) | 394 | 81.6% | 98 min | 0.00% | B+ |
| Southwest Airlinesthin sample | 128 | 73.0% | 49 min | 0.78% | C+ |
Flight by flight
Delta flight numbers on SLC to BUR
Departure window
When Delta runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 394 flights.
- 5am–8am—
- 8am–11am60 flights86.7%
- 11am–2pm4 flights—
- 2pm–5pm1 flights—
- 5pm–8pm—
- 8pm–5am329 flights80.7%
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
The early departures do better, though not dramatically: 86.7% on time for the 8am–11am window against 80.7% for 8pm–5am. Worth taking if the schedule allows, not worth an extra connection. The 8pm–5am window is the busiest, with 329 flights scheduled in it.
Across the year
Delta on SLC to BUR through the year
December is the weak month at 68.8% on time, against 93.3% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 55 flights.
Across the week, Saturday is the strongest day at 90.0% on time and Sunday the weakest at 75.4%. 15 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Delta runs late on this route
One category carries most of the weight here. Carrier accounts for 75% of the 7,022 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 75%Carrier
- 19%Late-arriving aircraft
- 6%National Airspace System
The largest share of delay minutes, 75%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 5,267 of the 7,022 delay minutes reported here. The split is drawn from 7,022 reported delay minutes.
Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
6.9% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
The 574 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 92.1% on time across 394 flights, 11 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 11 points of difference.
One caution: this is a thin sample. 394 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Delta on SLC to BUR
Put together: treat all of this as provisional. 394 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 81.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 392 completed flights over 12 months sit behind that.
Related
Where to go next
- SLC to BUR, every carrier
- Delta on BUR to SLC, the return leg
- SkyWest Airlines on SLC to BUR89.5%
- Southwest Airlines on SLC to BUR73.0%
- Delta Air Lines network-wide record
- Salt Lake City International (SLC) delay statistics
- Worst months to fly in the US, ranked by the data
- How to read this site: grades, sample sizes, and honest caveats
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.